package com.atguigu.gulimail.ware.service.impl;

import com.atguigu.common.constant.WareConstant;
import com.atguigu.gulimail.ware.Vo.MergeVo;
import com.atguigu.gulimail.ware.Vo.PurchaseFinshVo;
import com.atguigu.gulimail.ware.Vo.PurchaseItemDaoVo;
import com.atguigu.gulimail.ware.entity.PurchaseDetailEntity;
import com.atguigu.gulimail.ware.service.PurchaseDetailService;
import com.atguigu.gulimail.ware.service.WareSkuService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimail.ware.dao.PurchaseDao;
import com.atguigu.gulimail.ware.entity.PurchaseEntity;
import com.atguigu.gulimail.ware.service.PurchaseService;
import org.springframework.transaction.annotation.Transactional;


@Service("purchaseService")
public class PurchaseServiceImpl extends ServiceImpl<PurchaseDao, PurchaseEntity> implements PurchaseService {


    @Autowired
    PurchaseDetailService purchaseDetailService;

    @Autowired
    WareSkuService wareSkuService;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<PurchaseEntity> page = this.page(
                new Query<PurchaseEntity>().getPage(params),
                new QueryWrapper<PurchaseEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPageUnreceive (Map<String, Object> params) {
        QueryWrapper<PurchaseEntity> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("status",0).or().eq("status",1);
        IPage<PurchaseEntity> page = this.page(
                new Query<PurchaseEntity>().getPage(params),queryWrapper

        );

        return new PageUtils(page);
    }

    @Transactional
    @Override
    public void mergrPPurchase (MergeVo mergeVo) {
        Long purchaseId = mergeVo.getPurchaseId();
        if (purchaseId==null){
            //1.新建一个
            PurchaseEntity purchaseEntity = new PurchaseEntity();
            purchaseEntity.setStatus(WareConstant.PurchaseStatusEnum.CREATED.getCode());
            purchaseEntity.setCreateTime(new Date());
            purchaseEntity.setUpdateTime(new Date());
            this.save(purchaseEntity);
            purchaseId= purchaseEntity.getId();
        }
        List<Long> items = mergeVo.getItems();
        Long finalPurchaseId = purchaseId;
        List<PurchaseDetailEntity> collect = items.stream().map(i -> {
            PurchaseDetailEntity detailEntity = new PurchaseDetailEntity();
            detailEntity.setId(i);
            detailEntity.setPurchaseId(finalPurchaseId);
            detailEntity.setStatus(WareConstant.PurchaseStatusEnum.ASSIGNED.getCode());
            return detailEntity;
        }).collect(Collectors.toList());
        purchaseDetailService.updateBatchById(collect);

        PurchaseEntity purchaseEntity = new PurchaseEntity();
        purchaseEntity.setId(purchaseId);
        purchaseEntity.setUpdateTime(new Date());
        this.updateById(purchaseEntity);
    }

    @Override
    public void received (List<Long> ids) {
        //1.确认当前采购单是新建或者已分配状态
        List<PurchaseEntity> collect = ids.stream().map(id -> {
            PurchaseEntity byId = this.getById(id);
            return byId;
        }).filter(item -> {
            if (item.getStatus() == WareConstant.PurchaseStatusEnum.CREATED.getCode() ||
                    item.getStatus() == WareConstant.PurchaseStatusEnum.ASSIGNED.getCode()) {
                return true;
            }
            return false;
        }).map(item->{
            item.setStatus(WareConstant.PurchaseStatusEnum.RECEIVE.getCode());
            item.setUpdateTime(new Date());
            return item;
        }).collect(Collectors.toList());
        //2.改变采购单的状态
        this.updateBatchById(collect);
        //3.改变采购单的状态
        collect.forEach(item->{
           List<PurchaseDetailEntity> entities = purchaseDetailService.listDetailByPurchaseId(item.getId());
           List<PurchaseDetailEntity> detailEntities = entities.stream().map(entitiy -> {
                PurchaseDetailEntity entity1 = new PurchaseDetailEntity();
               entity1.setId(entitiy.getId());
               entity1.setStatus(WareConstant.PurchaseDetailStatusEnum.BUYING.getCode());

                return entity1;
            }).collect(Collectors.toList());

            purchaseDetailService.updateBatchById(detailEntities);
        });

    }

    @Override
    public void done (PurchaseFinshVo purchaseFinshVo) {

        Long id = purchaseFinshVo.getId();
        //2.改变采购项状态
        Boolean flag =true;
        List<PurchaseItemDaoVo> items = purchaseFinshVo.getItems();
        List<PurchaseDetailEntity> updates = new ArrayList<>();
        for (PurchaseItemDaoVo item : items) {
            PurchaseDetailEntity detailEntity = new PurchaseDetailEntity();
            if(item.getStatus()==WareConstant.PurchaseDetailStatusEnum.HASERROR.getCode()) {
               flag =false;
                detailEntity.setStatus(item.getStatus());
           }else {
                detailEntity.setStatus(WareConstant.PurchaseDetailStatusEnum.FINISH.getCode());
                //3.将成功采购的进行入库
                PurchaseDetailEntity entity = purchaseDetailService.getById(item.getItemId());
                wareSkuService.addStock(entity.getSkuId(),entity.getWareId(),entity.getSkuNum());
            }
           //
            detailEntity.setId(item.getItemId());
            updates.add(detailEntity);
        }
        purchaseDetailService.updateBatchById(updates);
        //1.改变采购单状态

        PurchaseEntity purchaseEntity = new PurchaseEntity();
        purchaseEntity.setId(id);
        purchaseEntity.setStatus(flag?
                WareConstant.PurchaseDetailStatusEnum.FINISH.getCode():
                WareConstant.PurchaseDetailStatusEnum.HASERROR.getCode());
        purchaseEntity.setUpdateTime(new Date());
        this.updateById(purchaseEntity);



    }

}